package com.zsr.xmall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.zsr.common.entity.product.AttrGroupEntity;
import com.zsr.common.vo.product.Attr;
import com.zsr.common.vo.product.AttrGroupWithAttrsVo;
import com.zsr.common.vo.product.SpuItemAttrGroupVO;
import com.zsr.xmall.product.service.AttrService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zsr.common.utils.PageUtils;
import com.zsr.common.utils.Query;

import com.zsr.xmall.product.dao.AttrGroupDao;
import com.zsr.xmall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        LambdaQueryWrapper<AttrGroupEntity> wrapper = new LambdaQueryWrapper<AttrGroupEntity>();
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((obj) -> {
                obj.eq(AttrGroupEntity::getAttrGroupId, key).or().like(AttrGroupEntity::getAttrGroupName, key);
            });
        }

        if (catelogId != 0) {
            wrapper.eq(AttrGroupEntity::getCatelogId, catelogId);
        }
        IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                wrapper);
        return new PageUtils(page);

    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new LambdaQueryWrapper<AttrGroupEntity>()
                .eq(AttrGroupEntity::getCatelogId, catelogId));

        //2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group, attrsVo);
            List<Attr> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId()).stream().map(attrEntity -> {
                Attr attrVo = new Attr();
                BeanUtils.copyProperties(attrEntity, attrVo);
                return attrVo;
            }).collect(Collectors.toList());

            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());

        return collect;

    }

    /**
     * 查出spu对应的所有属性的分组信息以及当前分组下的所有属性对应的值
     *
     * @param spuId
     * @param catelogId
     * @return
     */
    @Override
    public List<SpuItemAttrGroupVO> getAttrGroupWithAttrBySpuId(Long spuId, Long catelogId) {
        List<SpuItemAttrGroupVO>  list =this.baseMapper.getAttrGroupWithAttrBySpuId(spuId, catelogId);
        return null;
    }

}